Misspoke about the reverb mixer resistor. I said it was 1.5K. it was 1.5M. Big difference. End of a long day, sorry.

What a beast of an amp you have created. The best of all Fender worlds.

I find that the shear volume of work and videos you present, as well as your knowledge and experience is fantastic. Thank you, Lyle, I learn from you every day, so glad I found your channel.

I cant wait to get my 68 custom done rebuilt by you! Will be shipping when i get back in town next week..

The sound of the stock 68 DR custom channel is fantastic IMO. Works great with my pedalboard and the kind of music I’m playing. Could do with fixing the noise though I wouldn’t change the sound on it. Always get great comments from sound guys.

Love this! I had a less than stellar Pro Reverb Custom. Returned it due to well, what I didn’t know about Fenders commercial lineup. But talking to techs, if you’re willing to invest $350 or so. You can really make these amps sing. I went with a Sky King amp, but still brought it to a tech. Especially after watching the video on that, and having possible cathode output issues. I was def able to tell with these videos. I learn so much here, and very entertaining for me 😆

False advertising eh? Enjoying your videos Lyle. Learning stuff I didn't know.

Robonette's site is awesome. It even helped me fix a non-fender reverb circuit that was oscillating once

As god and Leo intended. ❤️

I love the closed captions on this... did you know this amp has a bravado channel?!? Looking forward to trying some of these ideas on my '68 Custom Princeton Reverb reissue, filter caps, etc.

I have schematics on file from Fender for over 30 different Fender Bassman models. Reissues included. Starting with a 5A6 to the blonde 6G6B to the AA165 blackface to the Bassman 10 to the 135 ultralinear Bassman to the Superbassman and into the modern FMIC imported reissues, and even a couple of odd hand wired custom shop models.

Great job as usual, lots of info and a beaut of an amp..Great sound..Ed..uk..😀

Thought about selling my 68 for a tone king imperial. But now im thinking of having of this done. Great video very informative!

I finally got around to dealing with this '68 CDR noise machine of mine that I bought this time last year. After a filter cap change to F&Ts and swapping out the NFB resistor to an 820, relocating the PT center tap and power supply filter grounds to near the PT, getting the heater circuit off the board and directly to V8, along with an ACT array, the dreaded hum and most of the hiss are gone, I mean GONE. BUT NO, WAIT! Now I have an obnoxious buzz in the reverb. Watching your Part 1 video I've discovered they mis-built my PCB, leaving the 220k mix resistor in rather than a jumper from R53. So, if I remove it and add the jumper I'll have their kludge of reverb on both channels still, but I'm not sure what kind of noise I'll have. Or, I can leave the 220k there, remove the preamp jumper and add C5 and have no reverb on the Custom channel, but maybe no buzz on the Vintage channel....hmmm.

Most excellent!

Enjoying your vids

I have a "68 custom" deluxe reverb. Now I'm thinking about sending my amp to you.

Nice work mate :)

Glad i discovered this channel! Thanks for all your input. Ive got many hours to watch and look forward to it! One question... Which 68 amp do you like the best from the entire reissue line? I have the DR but was looking at the Pro. Do you prefer one over the others??

Most of the narrow panel Bassman’s from late 58 on had a 100k slope resistor and a 250pf/22nf/100nf tone stack. All linear pots too. It drives me crazy when “clones” copy the Fender schematic and claim it’s a “59”. Total bullshit. Even Fender got the reissue right. It’s probably the most accurate Bassman most people can buy. Your “half watt” carbon film looks like a one watt to me! They’re the same size as the one watt Xicon’s I have. I used to do a lot more repairs and didn’t mind any suggestions or watching videos of what someone wanted done. I can’t read minds and generally, guitar players don’t know how to explain what they’re after.

Looks like the fuse is removed from the heater circuit - or did you relocate it? Thanks.

At 9:19 you referred to the JJ tube as being microphonic, the tubes in your hand are GT (Groove Tube). Is it JJ OR GT that usually go microphonic in combo amps. I know the JJ’s have a 6L6GC version available with Double Mica spacers in the top of the tube to reduce rattle in combo amps but I have no experience with them.

I've been watching this for 40 minutes and you didn't show the fix?

Man that's some nice info about the amp! Would you recommend some values that you use in the cathode bypass caps?

What was the total price of fixes and upgrades?

I am no amp technician but looking at all the work you have done here. Would it be simpler and maybe less expensive to build one from scratch!???

I was about to buy this amp or the twin..😆.Not anymore.Very interesting.

Hey man. Does it still have the same touch sensitivity as the factory. Has to possibly do with the negative feed back from what I've read. Thanks.

is there any audio difference between solders? Or is it just mechanical strength?

I may be mistaken but I've been operating under the impression that Leo IS God. 🤷‍♂️

how much does a service and upgrade like this cost?

How much did this work end up costing your customer?

What does this kind of work cost?

Lyle, you think it’s worth installing a mids pot in a Vox, especially if you’re use to using mids heavy pedals like tubescreamers when boosting? I was thinking about it, but I don’t know 🤷‍♀️ if it’s just adding another adjustment just for the sake of doing it? Maybe it’s better option for players that don’t use pedals?

Is that a 25k pot for the mids? Seems that way based on where the settings are for the various styles(twin, deluxe)

Beautiful but how do you make money on that, this rebuild should cost 1000$

Do you have published parts list and mods for the changes you made. Mine is a little noisy and I love the "Super Reverb" mod? Or maybe I can jus send it to you?

Where about are you located?

Is the RobRob reverb mod best applied on the underside of the PCB?

Lyle, Is a Deluxe Reverb and a Vibrolux Reverb the same circuit? I have a VR.

That is a beautiful mod that doesn't look like copper & PVC afterbirth from an abortion of wires pouring off of a cheap PCB.